517
CDUS46 KMTR 040026
CLISFO
CLIMATE REPORT
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
526 PM PDT WED SEP 03 2025
...............................
..THE SAN FRANCISCO AIRPORT CLIMATE SUMMARY FOR SEPTEMBER 3 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1927 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 73 1:24 PM 93 1961 75 -2 84
MINIMUM 58 4:59 AM 50 1945 56 2 51
1947
1970
AVERAGE 66 65 1 68
PRECIPITATION (IN)
TODAY 0.00 T 1992 0.00 0.00 0.00
1993
2003
MONTH TO DATE 0.00 0.00 0.00 0.00
SINCE OCT 1 16.11 19.57 -3.46 20.23
SINCE JAN 1 7.55 12.60 -5.05 14.90
SNOWFALL (IN)
TODAY MM 0.0
MONTH TO DATE T
SINCE SEP 1 T
SINCE JUL 1 T
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 0 5 -5 0
SINCE SEP 1 0 5 -5 0
SINCE JUL 1 90 107 -17 130
COOLING
TODAY 1 2 -1 3
MONTH TO DATE 6 6 0 3
SINCE SEP 1 6 6 0 3
SINCE JAN 1 56 116 -60 77
...............................................................
WIND (MPH)
RESULTANT WIND SPEED 5 RESULTANT WIND DIRECTION NW (320)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87 5:00 AM
LOWEST 61 2:00 PM
AVERAGE 74
......................................................
THE SAN FRANCISCO AIRPORT CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 92 1961
2004
2008
MINIMUM TEMPERATURE (F) 56 50 1947
1989
SUNRISE AND SUNSET
SEPTEMBER 3 2025.....SUNRISE 6:42 AM PDT SUNSET 7:35 PM PDT
SEPTEMBER 4 2025.....SUNRISE 6:43 AM PDT SUNSET 7:33 PM PDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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